Which of the following process is responsible for fluctuation in population density?
(d) Age structure
The question was posed to me in an internship interview.
This is a very interesting question from Population Growth topic in chapter Organisms and Populations of Biology – Class 12
Right option is (b) Natality
To explain I would say: Natality is responsible for fluctuation in population density. It is the number of individuals born in a population at a specific time. For humans, it is described as a number of individuals born per 1000 of the population per year.